#!/usr/bin/env python3
"""
Check if the server is running and accessible
"""
import sys
import socket
import requests
from pathlib import Path

def check_port(host='localhost', port=7860):
    """Check if a port is open"""
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(1)
        result = sock.connect_ex((host, port))
        sock.close()
        return result == 0
    except Exception as e:
        print(f"Error checking port: {e}")
        return False

def check_endpoint(url):
    """Check if an endpoint is accessible"""
    try:
        response = requests.get(url, timeout=2)
        return response.status_code, response.text[:100]
    except requests.exceptions.ConnectionError:
        return None, "Connection refused - server not running"
    except Exception as e:
        return None, str(e)

print("=" * 70)
print("Server Diagnostic Check")
print("=" * 70)

# Check if port is open
print("\n1. Checking if port 7860 is open...")
if check_port('localhost', 7860):
    print("   ✓ Port 7860 is open")
else:
    print("   ✗ Port 7860 is not open - server is NOT running")
    print("\n   SOLUTION: Start the server with:")
    print("     python main.py")
    sys.exit(1)

# Check if it's the correct server
print("\n2. Checking if correct server is running...")
status, text = check_endpoint('http://localhost:7860/health')
if status == 200:
    print("   ✓ Health endpoint responds (correct server)")
elif status == 404:
    print("   ✗ Health endpoint returns 404")
    print("   WARNING: Something is running on port 7860, but it's not the FastAPI server!")
    print("   This might be python -m http.server or another static file server.")
    print("\n   SOLUTION:")
    print("   1. Stop the current server (Ctrl+C in the terminal running it)")
    print("   2. Start the correct server: python main.py")
    sys.exit(1)
else:
    print(f"   ✗ Health endpoint error: {status} - {text}")
    sys.exit(1)

# Check API endpoints
print("\n3. Checking API endpoints...")
endpoints = [
    '/api/market',
    '/api/coins/top?limit=10',
    '/api/news/latest?limit=20',
    '/api/sentiment',
    '/api/providers/config',
]

all_ok = True
for endpoint in endpoints:
    status, text = check_endpoint(f'http://localhost:7860{endpoint}')
    if status == 200:
        print(f"   ✓ {endpoint}")
    else:
        print(f"   ✗ {endpoint} - Status: {status}, Error: {text}")
        all_ok = False

if not all_ok:
    print("\n   WARNING: Some endpoints are not working!")
    print("   The server is running but routes may not be registered correctly.")
    print("   Try restarting the server: python main.py")

# Check WebSocket (can't easily test, but check if route exists)
print("\n4. WebSocket endpoint:")
print("   The /ws endpoint should be available at ws://localhost:7860/ws")
print("   (Cannot test WebSocket from this script)")

print("\n" + "=" * 70)
if all_ok:
    print("✓ Server is running correctly!")
    print("  Access the dashboard at: http://localhost:7860/")
    print("  API docs at: http://localhost:7860/docs")
else:
    print("⚠ Server is running but some endpoints have issues")
    print("  Try restarting: python main.py")
print("=" * 70)